Automatic train-stopping apparatus.



J. SUH'AEFER. AUTOMATIC TRAIN STOPPING APPARATUS. Arrmonldfl FILED MAR. 11, 1914.

1,1 13,838. Patented 0ct.13,1914.

3 BHEETS SHEET 1.

/nuw J. SCHABPER.

AUTOMATIC TRAIN STOPPING APPARATUS.

APPLIOATIOI FILED AB. 17, 1914.

Patented Oct. 13, 1914 3 SHEETS-SHEET 2.

J Johacfar:

wi lmem J. SCHABPBR.

AUTOMATIC TRAIN STOPPING APPARATUS.

APPLICATION FILED MAB-.17, 1914.

Patented Oct. 13, 1914.

3 SHEBTBSHEET 3.

20 Wwwm;

J Jaime arr JOHN SCIIAEFLR. F GILMANTON, WISCGNSIN.

AUTOMATIC TRAIN-STOPPING APPARATUS.

Specification of Letters Patent.

Patented Oct. 13, 1914.

Application filed March 17', 1914. Serial No. 825,330.

T 0 all whom it may concern Be it known that l, Jenn ScHAErEu, a c tizen of the United States, residing at Gilmanton. in the county of Buffalo and State of Visconsin. hare in ented new and useful. IXI'IPI'OVBIIIGXJS in Auh'unatie Train Stopping Apparatus, of which the follow-- ing is a specification.

This invention relates to improvements in automatic train stopping apparatus and has particular application to apparatus whereby the propelling power of a car may be cut oil and the brake applied in the event of the car or train entering the danger zone.

In carrying out the present inventi n, it is my purpose to provide an apparatus of the class described whirl. will embody a track instrument capable of being rendered acti e and ina tive and car carried me ha nhm designed, when engaged by the lll1V track instrum nt. to cut on the propelling power of" the car and elicit an application of the brain's.

It is also my purpose to provide an auto matic train stop which will operate when the car is "hm-hing" as well as when the car is trawling in the normal direction of trallic.

Furthermore. l aim to provide an apparatns of the type set forth which will embrace the desired features f etlinency and durability. which may be installedand main tlllllttl at a minimum expense and which will operate ell'ectirely under all weather condit ion \Vith the shore and other ob ects in view.

the invention consists in the construction.

combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings :--Figure 1 IS a fragmentary side elevation of a traclrway and motor car thereon equipped with Referring now to the accompanying drawings in detail, 1 designates the trackway. This trackway is preferably divided into blocks in any suitable manner and located at the entrance to each block in the usual semaphore controlling traflic into the block.

Arranged adjacent to the entrance to each block and preferably disposed upon one side of the trackway is a track instrument comprising a casing 2 constructed of suitable weather-proof material and formed with an upwardly extending neck 3. This casing is seated upon and securely fastened to the ties adjacent to one line of rails of the trackway and mounted within the easing and capable of sliding movement, therein is a v rtical rod 4 extending upwardly through the neck 3 of the casing and having the upper end thereof exterior-1y of the neck equipped with.a roller 5. A hood 6 is fastened to the rod 4 adjacent to the upper end thereof and is designed to incase the neck 3 when the rod is in inactive position so as to eliminate dirt. and other foreign matter from the interior of the casing. This rod 4 is slidably disposed within suitable guides carried by the casing and adjacent to the lower end thereof is formed with a vertical rod or rack teeth 7 with which meshes a pinion 8 keved upon a stub shaft 9 journaled in bearings 10 carried by the bottom wall of the casing. Keyed upon the stub shaft of the pinion 8 is a gear wheel 11 meshing with a pinion 12 on the armature shaft 13 of an electric motor 14. This motor is connected in an electric circuit 15 including a suitable source of electrical energy and a circuit closer under the ontrol of the signal blade of the adjacent semaphore so that when the signal blade goes to danger the circuit 15 will "be closed and the motor 14 series of notches 18'formed in the adjacent;

portion of the rod 4, while fixed to the shaft and extending upwardly therefrom at right angles to the dog 17 is an arm 19 having the upper end thereoipivotally connected with a horizontally disposed rod 20 equipped at one end with an a'rmature2l disposed ith in the influence of an electromagnet 22 suitahlv supported within the casing and connected in series in the circuit 15. The armature and of the rod 20 is connected to the upper end of a link 23 having the lower end pivoted as at 24 and acting to support the armature end of the rod. A spring actuated dog 23 is pivotally secured to the rod adjacent to the link 23 and is adapted to engage a notch 26 formed in the adjacent portion of the rod 4. By means of this construction, it will be seen that when the circuit is closed as previously described, the magnet 22 will be energized simultaneously with the motor and the armature 21 drawn into engagement with the pole faces of such magnet thereby slidin the .rod with the effect to rock the sha t 16 and swin the dog into a position to i-mgage one o the notches of the series 18 thereby holding the rod 4 elevated independently of the motor. Upon the breaking of the circuit 15 the rod 20 and dog 17 are restored to normal position by means of a coiled contractile spring 27 such spring having one end fastened to the rod 20 and the opposite end secured to an appropriate part of the casing .2. Upon the movement of the god 20't0 normal position, the dog 17 disengages the respective tooth of the series 18 with the effect to release the rod 4 and permit the latter to gravitate to lowered or inactive position and as the rod rmches inactive position the dog engages a the notch 26 on the rod with the effect to maintain the latter against upward movevwent. An electric switch 23 is connected across the terminals of the motor 14 and the b ades of such switch are connected with one end of a link 29, such link having theopposite end thereof connected with the vertical limb 30 of a bell crank lever 31 pivoted within the casin and having a relatively long limb 32. he outer end of the limb 32 of the bell crank lever 31 is disposed in the path of movement of a pin 33 carried by the rod 4 and as the rod 4 moves to active position under the action of the motor the pin 33 engages the adjacent arm of the belluerank lever 31 with the efiect to swing th latter and so actuate the link 29 to close t e switch 28 thereby short circuiting the'motor 14. Thus, the motor is deenergizedwhile the rod 4 is held in active position under the action of the dog 17 rod 20 armature 21 and magnet 22.

In some instances as where a caution signal is' displayed, it may be desired to check the upward movement of the rod 4 so as to hold the rod in semi-elevated position and for this purpose I employ a horizontal rod 34 mounted for sliding movement Within suitable bearings and equipped at one end with an armature 35 disposed within the influence of the poles of a magnet 36. Connected to the opposite end of the rod 34 and upstanding therefrom in parallelism with the rod 4 and disposed adjacent to the latter is a guide 37 while mounted within the guide and capable of sliding movement therein is a stem 38 provided with an outwardly projectin pin 39 working within a slot formed in tie guide. The upper end of the stem 38 terminates a short distance below the relativel long arm of the bell crank lever 31, while the pin 39 is disposed above the pin 33 on the rod 4 when til latter is in normal position. The magnets 36 and 22 and the motor 14 are connected in series in the circuit 15 when the blade is at caution positionso that the latter is actu ated to elevate the rod 4, the dog 25 disengaged from the notch 26 and the dog I? moved into engagement with the adjacent portion of the rod 4, and the armature 35 thrown into engagement with the poles of the magnet 36 thereby disposing the pin 35') in the path of movement of the pin 33 so that as the rod moves upwardly under the action of the motor the pin 33 engages the pin 39 and so elevates the stem 38 with the elfect to en age the up er end of such stem with the on arm 0 the bell crank lever 31 and therefiy actuate the switch 28 to short circuit the motor 14. In the present instance, a coiled contractile spring 40 has one end fastened to the rod 4 and the o posite end secured to the bottom wall of t e casing 2 and acts to restore the rod to normal or inactive position succeeding the release of such rod by the latching dog 17.

In the embodiment of my invention selected for illustrative purposes the car carried mechanism comprises a horizontal shaft 41 journaled in suitable bearings arranged transversely of the motor car. Connected to the opposite ends of this shaft and depending therefrom are arms 42, 42 while extending upwardly from the shaft adjacent to one end thereof is a lu 43 to which is connected one end of a ro 44 connectedwith an element controlling the propelling power of the motor car. In the present instance,

the car carried stopping mechanism is shown as applied to a steam locomotive and the rod 44 is connected in some suitable manner with the throttle valve of the car. Connected with the shaft 41 and spaced a suitable distance from the lug 43 is a lug 45 to which is connected a rod 46 having suitable connections with the engineers brake valve and adapted to actuate such valve to efi'ect an application of the brakes. The arms 42, 42 at the opposite sides of the car are preferably inclined rearwardly as illustrated in Fig. 1 and arranged at the rear of each arm and suitably connected to the frame of the motor car is a stub shaft 47 upon which is pivoted an arm 48 inclined forwardly or in a direction reverse to that of the adjacent arm 42.

20 the -'Connected with the 1'1 end of each arm 48 is 3, lug 49 fastene through the medium of arod '50 with the adjacent arm 42 below thebfihaft il.

5 From the foregoing description taken in connection with the accompanying draw ings, the construction and mode of opera tion of my improved train stopping appa ratus will be readily apparent.

danger the adjacent "track instrument is actuated and the rod 4 elevated as previously described and disposed in the path of move ment of one of the arms 42 on the motor car.

danger signal the respective arm 42 will be actuated to rock the shaft 41 and so actuate I the rods 44 and 46 with the effect to cut off the ropelling power of the car and apply brakes In the event of the motor car "jrunning rear end first or against the normal direction of trafiic the arm48 will contact with the active rod 4 of the track instrument "and rock the shaft 41 as in t described, incident to the connections between the arm 48 magnet 36 will be connected in series in the I -circuit lfi andze nergized simultaneously with 80 ,ing the rod 4 previous to the latter reaching the end of its pathof movement. In this 'positionoftherod 4 the arm 42 of a passin train will engage therod and rock the Shirt 41 a distance siifligi' nt to cut down'the flow of'steam-to'the 'drive cylinders of the en-' eJ-andefiectfafservice application of the movement to active and inactive positions,

In practice, when a signal blade goes to and mum 42. On the-other hand, should the signal blade be in caution position the.

the magnet. 22 and the motor 14 thereby. rai s-'- 1. In train stopping apparatus, a track instrument comprising a rod capable of an e lectrii: motor for moving said rod active position a, catch for holding sun-t mto active position.

in train stopping apparatus, a mar-t. instrument comprising a rod capable of movement to active and inactive osition an electric motor f r moving and rod t active position, a catch for-holding ssiu rod in active position, an electromagnet fo 0 crating said catch, an electric circuitinciiiding said magnet and motor in series, and a switch operable from said rod to short cir cuit said motor succeeding the movement of i the rod to active position.

3. In train stopping apparatus, a track instrument comprising a rod.:.( apable of movement to active and. inactive pos tions, an electric motor for moving said rod to an tiveposition, a catch for holding said rod in active position, an electromagnet for op erating said catch. an electric circuit including said magnet and motortin series, a switch (or short circuiting said motor, and means w.-

for actuating said switch previous to the rod reaching the limit of its movement toaetiw position.

4. In train stopping apparatus, a truck instrumentcomprising a rod capable of movementto active and inactive positions, an electric motor for movin said rod to active position, a catch for ho ding said rod in active position, an electrom'ol'g'net for operating said catch, an electric circuit including said magnet and motor in series, a switch for short circuiting said motor, means for actuating said switch previous to said rod reaching the limit of its movement to active position, and an electrbmagnet adapted to JOHN SCHAEFER.

Witnesses:

\JOHN Sanwny,

FRED Koa'rn.

'be connected in series in said circuit to actu- 

